The owner of a moving company typically has his most experienced manager predict the total number of labor hours that will be required to complete an upcoming move. In an effort to provide a more accurate method, the owner has decided to use the number of cubic feet moved as the independent variable and has collected data for 20 moves in which the travel time was an insignificant portion of the hours worked. Use the data provided to complete parts (a) through (d) below. Click the icon to view the data table. a. Construct a scatter plot. Choose the correct graph below. ..... O A. OB. O D. 900- 60- 900- 60- 0- -> 0- 60 900 Cubic Feet Hours 60 900 Cubic Feet Hours b. Assuming a linear relationship, use the least-squares method to determine the regression coefficients bo and b. Cubic Feet Cubic Feet Hours

Assume a varies directly as b². If b is doubled, how will it affect a. Explain your answer in detail and upload your solution. Upload Choose a File Question 7 The mass of the sun is approximately 2 x 1030 kilograms, and the mass of the Earth is approximately 6 x 1024 kilograms. How many more times greater is the mass of the sun than the mass of the Earth? Explain your answer in detail and upload your solution. Upload Choose a File Question 8 JAN 14 MacBook Air

3. Determine if the data is linear or exponential and find a function that models the data: -4 -2 0. 2 4 y 0.625 2.5 10 40 160

The loudness, L, of a sound (measured in decibels, dB) is inversely proportional to the square of the distance, d, from the source of the sound. For a person 7 feet from a sound source, suppose the loudness is 85 decibels. How loud is the sound source when the person is 46 feet away? (Round your answer to two decimal places if necessary). dB Question Help: D Post to forum Submit Question esc 仑 G Search or type URL @ $ % 1 2 3 4 5 6 Q W E R A S D F G ock

Which values should you plot to show a linear relationship? Month Population Log(population) 1 1400 3.146 2600 3.415 4700 3.672 4 9000 3.954 17000 4.230 6. 32000 4.505 2. 3. 寸 5.